Grate.



' GRATE.

(Application led Aug. 19, 1897.)

(No Model.)

i 1 l I W/TNESSES:

UNITE@ *STATES PATENT cF-FICE,

GEORGE A. LONG, OE BOSTON, MASSACHUSETTS.

GRATE.-

SPECIFIGATION forming part ofV Letters Patent No. 634,694, dated Il'October lO, 1899.

Application filed iugm 19,1897. Serin ra. 648.820. (No model.)

To all whom it may concern.-

v cated by the arrow. Fig. at isa modified form y by the arrow.

of shaking device. Fig. 5 is a section on line 5 5 of Fig. lookingin the direction indicated My invention isa conical grate Supported at the bottom of a tire-box, with its apexex.-

. tending upward and provided with means for raisingand lowering thegrate bodily.`

Y In the drawings, A is the grate, which is conicalin form,v the apex of the Acone being out oi to make an opening for the Split pipe n, ct', which guides the grate inits upandfdown movement` and'serves as anaxis on whichit may be 'swung.. Vflhetwo Sections an of this split, pipe are fast-tocrossrpieces a? c3, which extend acrossV underneath the. fire-box 'and which are Supported by dependent arms d? c5,

which are fast toairinn a6 securedinftheturned and the. grate lowered-as .far as may re-bo';. `The grate is Supported inplace by the -cam .or eccentric 1B', on which' rests the K v v l A contents" of tirelire-box are to be du m pecl,y the cross-piecebfof ringb, whichfits over,'splitV pipe a n', as clearly Shown' in Figs'. 1 and 3.v

' j iS journa'rledin the rportion an .of the4 split- The cam B is turnedby means of arm Iii-which In Figs. l to .3 theV grate is :.turnedjfon its, meansofarml), lfast'to projection d In Figs. 4 and 5 I have shown ai-,modnilied fformy kof '-shakingan'd lowering device. vIjn these figures the' arm b2, fast to @am B, is in-` closed in the hollowarm Ld', the end yof arm b2 extending beyond the end of arm d". Fast theas'h-pit is required v Y to' fallout around the wallsdo so5'whi1ethe engaging projection d3, fast tothe grate-A.

The outer ends of arms b2 and d are preferably squared Oft to allow them to be grasped by a wrench. This modified form is especially adaptedV for use on parlor-stoves and the like, it making amore compact and a neater arrangement than'tbe form shown in Figs'l to 3.

It is obvionsthat that porti-on of the re in contactwith the walls'of the furnace and with the grate will iirst' die out-irst, because the heat is radiated more quickly, and, secondly, as to the grate, because combustion is iercest at this point, as it is the place where Oxygen is admitted. 4In some npright furnaces heretofore made when it has been desired to re,-

. movethis waste matter it has been accomplished by shaking the entire body of re, with the result lthat in removinga part of the be removed, which subsequently would removed, so that no' sifting of the contents of bnrnedfout material closeto the grate is lalso .easily dislodged', leaving the center of the fire undisturbed r'and clear;

. Tofope'rate my'grate, arnibg'is first The yashes being free Y waste a very large portion of live coals would v be necessary fo'rgtlie object-in view. If the itis turned by arm d vuntil `all ,ashesV are .diseharged. I n y j f y lVhatl claimas my invention lis-.-

provided with arm Z22 all arranged Vand'opery ating'substantially as described;

. to arm d.' is rarm d2, extending upward `and je'ctiou cl3; Split pipes Ct o; ring 'o' provided 2. In combination grateAprovided with pro- Ygrateis' loweredias fares-it will go and a few shakes given by fmeausfof arm d, whenthe" Aobjectwillbe accomplished.V -lf `a merey removal/Of clogging ash and .clinker isdesire'd,V the'gtrate `is loweledsnfiicintly tOfPermit the clinkers tofall out 'and then raised to within.` v

vone-half an inch fof its topniost positionvhexn l with cross-piece b; @am B provided with arm i b2 and hollow arm d' provided with projection d2, all arranged to operate substantially as shown` l 5 3. In a, furnace, the combination of a standard; a circular' grate on the standard and free to turn about and slide upon the standard; 1

a cam supported by the standard and adapted by its rotation *C0` raise the gmand a Shaft to rotate the cam, substantially as described;

' GEORGE A. LONG Witnesses:

WM; MAYNADIER, JOHN R. SNOW. 

